DX7 Voice Rom 4
| Manufacturer | Yamaha |
| Function | Accessory (DX7 Cartridges) |
| Produced | 1986 |
| Country | Japan |
| Model ID | NB82830 |
| Form Factor | Part |
| Signal Path | Digital Hardware (including Analog Connections) |
| Notes | 4 - Orchestral and Percussive Group, Complex and Effects Group |